Home / 6,619.77-9,135.36-3,635.55

Finding the Fourth Proportional to 6,619.77, 9,135.36 and 3,635.55

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Solution

The fourth proportional to 6,619.77, 9,135.36 and 3,635.55 is: 5,017.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.77 : 9,135.36 = 3,635.55 : x
  2. Step 2: Convert to fraction form
    6,619.77/9,135.36 = 3,635.55/x
  3. Step 3: Cross multiply
    6,619.77x = 9,135.36 × 3,635.55
  4. Step 4: Simplify right side
    6,619.77x = 33,212,058.05
  5. Step 5: Solve for x
    x = 33,212,058.05/6,619.77
  6. Step 6: Final answer
    x = 5,017.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.